Introduction - If you have any usage issues, please Google them yourself
With this small example, we can learn about using C# to produce some form of irregular shape, such as bubbles form, graphic form, of course, an old hand saw will see to understand, here will use some auxiliary material, which is pre- prepared BMP bitmap, C# is just a bitmap as the background of these and then a little handle, remove the original form of the border, an irregular form is complete.